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Using Virtual Reality for an Immersive Experience in the Water Cycle

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Using Virtual Reality for an Immersive Experience in the Water Cycle Using Virtual Reality for an Immersive Experience in the Water Cycle Nicole Chin Aakash Gupte ​ [email protected] [email protected] ​ John Nguyen Sabrina Sukhin Grace Wang ​ ​ [email protected] [email protected] [email protected] ​ Joe Mirizio* ​ [email protected] New Jersey Governor’s School of Engineering and Technology 21 July 2017 *Corresponding Author Abstract—A common misconception regarding virtual reality II. BACKGROUND ​ ​ ​ (VR) technology is that it is simply a gaming platform. The main A. VR Technology purpose of this project is to refute this notion and demonstrate the applications of VR beyond entertainment. One such usage for In the past few years, VR has become widely used in the VR is in education. VR can be used to immerse the user in an creation of video games. However, the practical applications environment where he or she learns through interaction with the of VR technology can extend much farther than gaming. VR is surroundings. This concept led to the development of SplashSim, a platform that places the user in a virtual world with an a mobile-based VR application in which the user traverses interface that allows for realistic interaction. The user puts on through the stages of the water cycle in the perspective of a water a headset and can become fully engaged in a simulated droplet. Through this approach, SplashSim enables the user to experience the water cycle in a unique and engaging way. Within environment as if they are actually existing in it, providing a this immersive VR environment, users are not only able to more unique medium of immersion. A smartphone's accelerometer closely observe processes such as the water cycle, but can also and gyroscope bolster the VR experience with a sense of study other important mechanisms that are not readily observed motion and position. The user is also able to move their head in the real world. to the respective part of the scene or explore the environment as they please. There is also 3D sound that plays louder when the user is near the audio source. By inserting students into I. INTRODUCTION ​ normally inaccessible areas and allowing them to experience it The 21st century is commonly defined as the age of first hand, VR enriches problem solving and critical thinking technological advancements. With the rise of smartphones and skills. [1] There are many different types of VR such as other digital devices, many new ideas have been developed to Window on World, Immersion, and Telepresence. Window on accompany the latest innovations. One such concept is virtual World does not require a headset: it is simply a realistic ​ reality (VR), which allows users to immerse themselves in a simulation. Immersion is the Window on World system that ​ ​ computer-generated environment. The objective of this project uses a headset to further engage the user. SplashSim is an is to create a product that uses VR to improve the learning example of immersion virtual reality. Finally, Telepresence is experience. The resulting application, SplashSim, places the a form of VR controlled remotely by a user. It typically ​ ​ user in the water cycle and allows him/her to become more involves using a drone to transmit a VR image to the operator. engaged in the environment. This paves the way toward VR is a viable instrument for advancing education integrating VR in education, where students can learn through techniques because it is capable of holding students’ attention. interaction and visual reference. [2] SplashSim is an example of how VR can be used as a 1 versatile type of technology with broad applications to various fields. B. VR History The concept of virtual reality has been around since the 19th century. The first VR head mounted display was made in 1960 by Morton Heilig. Since then, VR has spread widely. 2016 can be considered the year of virtual reality because of the influx of new VR technology such as the Oculus Rift and ​ ​ the HTC Vive, both of which are high-performance headsets. ​ ​ C. Visual Learning and Immersion Some may argue that using VR for education is unnecessary since videos and shows are just as effective at explaining content. However, VR offers a level of immersion Fig. 2 Diagram of the water cycle [16] that is unparalleled by traditional mediums. With VR, users feel more connected to the content because they are able to D. The Water Cycle personally interact with and manipulate it. [3] Compared with The water cycle is the process by which water undergoes ​ television, where the experience is from an outside point of changes in states through evaporation, condensation, and ​ ​ ​ view, VR offers a realistic first person perspective. This key precipitation. Evaporation is the process through which water ​ aspect gives VR large potential for educational uses. changes from a liquid into a gaseous substance. During condensation, gaseous particles of water come together and form liquid droplets. Finally, during precipitation, the liquid droplets fall back to earth in the form of rain, hail, or snow, or sleet. Some of these processes are depicted and explained in SplashSim. E. VR as a Platform for Education Traditional educational methods are slowly becoming supplanted by more advanced techniques. Educators constantly seek to develop new and exciting methods to make education more interactive and effective for the students. The education experience is being reshaped for students and teachers alike through new innovative teaching methods, advancements in technology, and programs designed to make technology more readily available. [7] In particular, VR in Fig. 1 Pie chart depicting distribution of learner types [4] education helps students retain information better, as it creates a unique, individualized environment that cannot be replicated According to a study done at the University of Alabama in the classroom setting. School of Medicine, the majority of people are visual learners, meaning they learn best when looking at a visual F. Unity representation of a concept. [5] SplashSim appeals to this Unity is a development platform that is used to create 2D wide body of visual learners by immersing them in an and 3D games. The editor allows users to design scenes, ​ ​ environment that they can see and explore. instances of the 3D landscape in Unity, and instantly observe the results of edits made. Unity also enables users to deploy their games to a myriad of platforms including TV, desktop, and mobile devices. Furthermore, Unity supports VR and augmented reality (AR), which makes virtual objects appear in ​ the real world, and is used to create games for virtual reality ​ headsets. Most games in Unity include features from the Unity asset store, which also allows users to access artwork, models, and scripts, programs that accomplish tasks in Unity. Finally, ​ ​ Unity allows users to share their work with others: Unity ​ Teams allows for collaboration on projects while Unity ​ Connect allows users to share their work with potential ​ recruiters. 2 H. Blender and Assets In order to build an immersive world in SplashSim, artwork and models are moved from Blender, the 3D modeling software where they are created, into Unity where the movements are created. This artwork is called assets. They ​ ​ were essentially objects that populated the simulation. The 3D art is saved as an .fbx file, which allows the assets that are published in Blender to be manipulated and changed in Unity. Fig. 3 The User Interface (UI) for Unity G. Google Cardboard Many VR devices are available to the general public, such as the HTC Vive, the Playstation VR, or the Oculus Rift; ​ ​ ​ ​ ​ ​ however, the Google Cardboard is one of the most affordable ​ VR technologies on the market. It is a cardboard box with a slit that can fit Samsung and iPhones. This device is a popular alternative to other VR devices because it is cheap and simple to use. The interactive conductivity button, as seen on top of the device in figure 4, is one such piece that allows users to Fig. 5 Blender interface press a button that transfers an electrical signal and taps the I. Android SDK screen. Due to features such as this, VR simulations are able The Android Software Development Kit (SDK) was to be more immersive. While most other VR technologies cost ​ hundreds of dollars, the Google Cardboard is the perfect integral to the development of the project as it enabled instrument to mass produce for all people to use. It is an SplashSim to be deployed to a Samsung Galaxy Note 5. The important part of making VR an essential part of classrooms Android SDK integrates Unity-based programming with all over the world. Google estimated that about 1 million Blender artwork and allows it to be viewed with the Google ​ Cardboards had been distributed, and that was before the New Cardboard. There were many settings in Unity that were York Times recently distributed more than a million to its configured with Android SDK in conjunction with the Java ​ subscribers. [8] The Google Cardboard was used in the Development Kit that enabled SplashSim to be run on a development of the project, and is essential in making VR Samsung Galaxy Note 5. more mainstream and accessible for the general population. J. Github Repository Github is web-based platform that allows users to collaborate on code. As a version control system, a GitHub ​ repository was made and shared with all group members. GitHub desktop was used and enabled the ability to push and fetch updates and changes made by each group member almost instantly. GitHub Desktop made sharing the project simple and fast. GitHub’s user interface allows the any member to see every change made by other members and revert to old versions if deemed necessary.
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